#C42E47
Closest named color: Ruby (#CA0147). oklch(54.4% 0.185 17.1), rgb(196, 46, 71).
Aa
White text reads best on this color (5.48:1).
About this color
#C42E47 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.185 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Ruby (#CA0147), ΔE 0.032 away. White text reads best on it, at 5.48:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.185) |
| Temperature | warm |
| Nearest name | Ruby (#CA0147) |
| Black text | 3.82:1 |
| White text | 5.48:1 |
Values
| HEX | #C42E47 |
| RGB | rgb(196, 46, 71) |
| HSL | hsl(350, 62%, 47%) |
| OKLCH | oklch(54.4% 0.185 17.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #C42E47 | 5.48:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #C42E47 | 3.82:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #C42E47 text on white | 5.48:1 | AA | Lc 76.0 | Fine for body text |
| #C42E47 text on black | 3.82:1 | AA large text | Lc -25.8 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#FDF3F3
oklch(97.2% 0.011 17.3)
-
Step 100
100
#FAE4E4
oklch(93.7% 0.024 17.6)
-
Step 200
200
#F6CECE
oklch(88.6% 0.045 18)
-
Step 300
300
#F2ABAD
oklch(80.9% 0.084 17.2)
-
Step 400
400
#E77B82
oklch(70.6% 0.133 17)
-
Step 500
500
#DD5563
oklch(63.2% 0.17 17.3)
-
Step 600
600 (this color)
#C42E47
oklch(54.4% 0.185 17.1)
-
Step 700
700
#AD233B
oklch(49.2% 0.172 17.4)
-
Step 800
800
#8C2031
oklch(42.7% 0.143 17.3)
-
Step 900
900
#71222B
oklch(37.8% 0.111 17.7)
-
Step 950
950
#42151A
oklch(26.9% 0.07 16.4)
#C42E47 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #595547 | 0.205 |
| Deuteranopia (no green cones) | #7F7443 | 0.186 |
| Tritanopia (no blue cones) | #D70039 | 0.041 |
| Achromatopsia (no color) | #696969 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C42E47
#C42E47
oklch(54.4% 0.185 17.1)
- #008082
#008082
oklch(54.4% 0.093 196.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #C42E47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ruby #CA0147 ΔE 0.032
- Dull Red #BB3F3F ΔE 0.033
- Cherry #CF0234 ΔE 0.034
- Lipstick #D5174E ΔE 0.037
- Rose Red #BE013C ΔE 0.040
- Lipstick Red #C0022F ΔE 0.040
- Dusty Red #B9484E ΔE 0.041
- Dark Rose #B5485D ΔE 0.047
Use #C42E47 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.